-
Seminars in Roentgenology Oct 2007
Review
Topics: Breast Neoplasms; Clinical Trials as Topic; Female; Humans; Mammography; Radiographic Image Enhancement
PubMed: 17919526
DOI: 10.1053/j.ro.2007.06.004 -
Cancer Epidemiology, Biomarkers &... Apr 2017Digital mammography saw rapid adoption during the first decade of the 2000s. We were interested in identifying the times and locations where the technology was...
Digital mammography saw rapid adoption during the first decade of the 2000s. We were interested in identifying the times and locations where the technology was introduced within the state of New York as a way of illustrating the uneven introduction of this technology. Using a sample of Medicare claims data from the period 2004 to 2012 from women ages 65 and over without cancer, we calculated the percentage of mammograms that were digital by zip code of residence and illustrated them with a series of smoothed maps. Maps for three of the years (2005, 2008, and 2011) show the conversion from almost no digital mammography to nearly all digital mammography. The 2008 map reveals sharp disparities between areas that had and had not yet adopted the technology. Socioeconomic differences explain some of this pattern. Geographic disparities in access to medical technology are underappreciated relative to other sources of disparities. Our method provides a way of measuring and communicating this phenomenon. Our method could be applied to illuminate current examples, where access to medical technology is highly uneven, such as 3D tomography and robotic surgery.
Topics: Breast Neoplasms; Female; Healthcare Disparities; Humans; Mammography; Medicare; New York; United States
PubMed: 28154106
DOI: 10.1158/1055-9965.EPI-16-0928 -
Radiologic Clinics of North America Jan 1992The history of mammography can be arbitrarily subdivided into three periods: The Age of Pioneers highlights the work of Salomon, Kleinschmidt, Warren, Vogel, Seabold,...
The history of mammography can be arbitrarily subdivided into three periods: The Age of Pioneers highlights the work of Salomon, Kleinschmidt, Warren, Vogel, Seabold, Gershon-Cohen, Leborgne, Egan, Gallager, Martin, Dodd, Strax and their colleagues; The Age of Technical Progress adds the names of Gould, Wolfe, and Gros and their co-workers; The Modern Era reflects the contributions of Price, Butler, Ostrum, Becker, Isard, Moskowitz, Sickles, Kopans, Homer, Tabár, and their associates. The ultimate success of mammography, the preeminent method of breast cancer screening, could not have been achieved without the intense vision, idealism, and scientific skill of its creators and nurturers. These investigators deserve a debt of gratitude that society can never adequately repay.
Topics: Breast Neoplasms; Europe; Female; History, 20th Century; Humans; Mammography; Mass Screening; United States
PubMed: 1732920
DOI: No ID Found -
Australasian Physical & Engineering... Jun 2007In 2001 the ACPSEM published a position paper on quality assurance in screen film mammography which was subsequently adopted as a basis for the quality assurance... (Review)
Review
In 2001 the ACPSEM published a position paper on quality assurance in screen film mammography which was subsequently adopted as a basis for the quality assurance programs of both the Royal Australian and New Zealand College of Radiologists (RANZCR) and of BreastScreen Australia. Since then the clinical implementation of digital mammography has been realised and it has become evident that existing screen-film protocols were not appropriate to assure the required image quality needed for reliable diagnosis or to address the new dose implications resulting from digital technology. In addition, the advantages and responsibilities inherent in teleradiology are most critical in mammography and also need to be addressed. The current document is the result of a review of current overseas practice and local experience in these areas. At this time the technology of digital imaging is undergoing significant development and there is still a lack of full international consensus about some of the detailed Quality Control tests that should be included in quality assurance (QA) programs. This document describes the current status in digital mammography QA and recommends test procedures that may be suitable in the Australasian environment. For completeness, this document also includes a review of the QA programs required for the various types of digital biopsy units used in mammography. In the future, international harmonisation of digital quality assurance in mammography and changes in the technology may require a review of this document. Accordingly, updates of this document will be provided as deemed necessary in electronic format on the ACPSEM's website (see http://www.acpsem.org.au/au/subgroup/radiology/RadiologySG_index.html).
Topics: Australia; Biopsy; Humans; Mammography; New Zealand; Quality Assurance, Health Care
PubMed: 17682397
DOI: 10.1007/BF03178412 -
European Journal of Radiology Jun 2010Data on the necessity of performing screening mammographies in transsexual women are lacking. The main objective of this study was to assess the possibility to perform...
Data on the necessity of performing screening mammographies in transsexual women are lacking. The main objective of this study was to assess the possibility to perform mammography and breast sonography in transsexual women. Fifty Dutch-speaking transsexual women were interviewed about the following: attitude towards mammography and breast sonography, importance attributed to and satisfaction with breast appearance, opinion about the necessity of breast check-up, expectations regarding discomfort during the exams and knowledge about the breast surgery. A fasting blood sample, clinical breast exam, mammography and breast sonography were performed. At mammography the following parameters were noted: density, technical quality, location of the prostheses, presence of any abnormalities and painfulness. At sonography the following parameters were recorded: density, presence of cysts, visualisation of retro-areolar ducts or any abnormalities. Twenty-three percent of patients are not aware of the type of breast implants and 79% do not know their position to the pectoral muscles. Patient satisfaction with the appearance of their breasts was rather high (7.94 on a scale of 0-10). Mean expected and experienced pain from mammography was low (4.37 and 2.00 respectively). There was no statistically significant difference in expected pain between those who already had mammography and those who did not. There was a significant positive correlation between the expected and the experienced pain. Mammography and breast sonography were technically feasible and no gross anomalies were detected. Since both exams were judged as nearly painless, 98% of transsexual women intended to come back if they would be invited. Since breast cancer risk in transsexual women is largely unknown and breast exams are very well accepted, breast screening habits in this population should not differ from those of biological women.
Topics: Adult; Attitude to Health; Breast Neoplasms; Female; Humans; Male; Mammography; Netherlands; Patient Satisfaction; Prevalence; Transsexualism
PubMed: 19359116
DOI: 10.1016/j.ejrad.2009.03.018 -
Australasian Physical & Engineering... Mar 2017
Topics: Breast Neoplasms; Female; Humans; Mammography; Quality Assurance, Health Care
PubMed: 28236175
DOI: 10.1007/s13246-017-0531-9 -
Radiologia Jun 2010
Review
Topics: Breast Neoplasms; Equipment Design; Female; Humans; Mammography; Radiographic Image Enhancement
PubMed: 20338602
DOI: 10.1016/j.rx.2009.12.005 -
BMJ (Clinical Research Ed.) Jun 2004
Topics: Breast Neoplasms; Diagnostic Errors; False Positive Reactions; Female; Humans; Mammography; Mass Screening; Risk Factors
PubMed: 15191996
DOI: 10.1136/bmj.328.7453.E301 -
Modern Pathology : An Official Journal... Sep 2011The incidence of columnar cell lesions in breast core needle biopsies since full-field digital mammography in comparison with screen-filmed mammography was analyzed. As...
The incidence of columnar cell lesions in breast core needle biopsies since full-field digital mammography in comparison with screen-filmed mammography was analyzed. As tiny microcalcifications characterize columnar cell lesions at mammography, we hypothesized that more columnar cell lesions are diagnosed since full-field digital mammography due to its higher sensitivity for microcalcifications. In all, 3437 breast core needle biopsies performed in three hospitals and resulting from in total 55 159 mammographies were revised: 1424 taken in the screen-filmed mammography and 2013 in the full-field digital mammography period. Between the screen-filmed mammography and full-field digital mammography periods, we compared the proportion of mammographies that led to core needle biopsies, the mammographic indication for core needle biopsies (density, microcalcifications, or both) and the proportion of columnar cell lesions with or without atypia. The columnar cell lesions were graded according to Schnitt, and we included atypical ductal hyperplasia arising in the context of columnar cell lesions. Proportions were compared using χ(2) tests and prevalence ratios were adjusted for age and hospital. We found that more core needle biopsies per mammogram were taken in the full-field digital mammography period (7.6%) compared with the screen-filmed mammography period (5.0%, P<0.0001). Microcalcifications were more often diagnosed with full-field digital mammography than with screen-filmed mammography (adjusted prevalence ratio: 1.14, confidence interval 95%: 1.01-1.28). Core needle biopsies from the full-field digital mammography era showed more columnar cell lesions (10.8%) than those from the screen-filmed mammography era (4.9%; adjusted prevalence ratio: 1.93, confidence interval 95%: 1.48-2.51), particularly due to more columnar cell lesions without atypia (8.2% respectively 2.8%) while the proportion of columnar cell lesions with atypia remained nearly constant (2.0 vs 2.6%). In conclusion, since the implementation of full-field digital mammography, more microcalcifications are seen at mammography, more often resulting in core needle biopsies, which especially yields more columnar cell lesions without atypia.
Topics: Biopsy, Needle; Breast; Calcinosis; Female; Humans; Mammography
PubMed: 21572405
DOI: 10.1038/modpathol.2011.81 -
European Journal of Radiology Aug 2020Conventional mammography is a decisive tool in detecting breast cancer. Continuous efforts are undertaken in order to further improve the image quality as well as to...
PURPOSE
Conventional mammography is a decisive tool in detecting breast cancer. Continuous efforts are undertaken in order to further improve the image quality as well as to reduce the applied doses. The purpose of our study was to compare diagnostic image quality of dose reduced computed mammography with a new needle-based detector system to full dose powder imaging plates.
METHODS
We retrospectively compared 360 randomly chosen mammographies performed on a GE Senographe DMR running the Agfa DX-M needle-based imaging plate system (NIP) with their preliminary examinations which were acquired at standard dose with the same GE mammography device and an Agfa CR85-X powdered storage phosphor imaging plate system (PIP). NIP-based mammographies were about 29.8 % dose-reduced. The preliminary examinations had to be performed not earlier than 2 years before the recent investigations. Exclusion criteria were changes in ACR level and appearance of the scored targets and not optimally positioned and exposed mammographies. The images were blinded and read separately twice by 2 mammography experts according to a 3-point score on diagnostic image quality and the visualization of parenchyma, cysts, fibroadenomas, physiologic lymph nodes, solitary microcalcifications and macrocalcifications.
RESULTS
Dose reduced NIPs showed a significantly better visualization of parenchyma at ACR II/III and solitary microcalcifications at ACR I-III mammographies (p < 0.001) whereas the difference in scoring macrocalcifications, cysts, fibroadenomas and physiologic lymph nodes was not significant. The reading showed an excellent intra- (r = 0.97/0.94) and interobserver agreement (r = 0.92).
CONCLUSION
With computed mammography using the needle-based detector system a significant dose reduction is possible without loss of diagnostic image quality.
Topics: Adult; Aged; Aged, 80 and over; Breast; Breast Neoplasms; Female; Humans; Mammography; Middle Aged; Radiation Dosage; Radiographic Image Enhancement; Retrospective Studies; X-Ray Intensifying Screens
PubMed: 32593077
DOI: 10.1016/j.ejrad.2020.109140